Reliability: Survival of Circuits 600 1 500 E 400 n 300 200 100 0 4 6 10 12 14 16 time [yr] Which is a correct statement about the chart? Time is the independent variable, circuits are the dependent variable, and the origin is not included in the graph The units of the dependent variable are years, and the number of circuits increases as time increases Circuits are the independent variable, time is the dependent variable, and the origin is not included in the graph. Time is the independent variable, circuits are the dependent variable, and time decreases as circuits decrease. The units of the dependent variable are years, and the number of circuits decreases as time increases. 1